mts Posted April 20, 2006 Report Share Posted April 20, 2006 Originally posted by "mazda-fla" Only 2001-2002 had cabin air filter. The 2000 does not have one. There is a TSB for this concern. Ask the Mazda Dealer how much they would charge to do this for you. If the price is high, you might be able to buy a similar type of canned spray product from an air conditioner place, autoparts store, home depot, or something like that. You might try to "Dry the Evaporator" (step 1 below) first. To see if that resolves the problem. Because that won't cost you anything. TSB: 07-004/02 Subject: Air Conditioning - Musty/Mildow Odor Description: A musty/mildew type odor may come from the vents when the air conditioning system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This conditions is usually worse during high humidity conditions. "Mazda Air Cooling Coil Coating" is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years. This treatment provides a durable coating that will aid to prevent biological reactions that lead to odor concerns. It is applied to the evaporator in a misted form that is introduced by way of the re-circulate door, the blower motor access, or the blower motor air intake. Proper application requires the evaporator surface to be relatively clean and free of leaves, dust build-up and debris. And to be thoroughly dried, and the product cured onto it after application. Note: To minimize A/C odor, inform customers of the following suggestions: 1. Keep the cooling unit dry by leaving the blower fan ON, even if the A/C is not being used. 2. In low humidity conditions, keep the ventilation system in the FRESH mode all the time, or as much as possible. 3. In high humidity conditions, or if the air has a lot of dust or pollen, keep the system in the RECIRCULATION mode. 4. A few minutes before reaching a destination, turn the A/C OFF, but leave the blower fan ON. This stops the accumulation of condensation on the evaporator/cooling unit, and it helps dry the inside of the cooling unit. Repair Procedure: 1. Verify customer concern. 2. Verify that evaporator drain has no blockage. 3. Apply the "Mazda Air Cooling Coil Coating" according to attached instructions. 1998-2000 Millenia: 1. Dry evaporator using the following procedure: A. Start engine. B. Set HVAC controls as follows: RECIRCULATE FULL HEAT (display indicates 90 degrees F). FAN HIGH A/C OFF (blank) AIRFLOW (FACE) Note: There are three A/C positions on the LCD panel (A/C, AC econ, blank). Depress the A/C button until blank is selected. C. Open one window approximately 1/2 inch. D. Let engine run for 10 minutes. 2. Remove glove box by removing two screws on the bottom of glove box assembly. 3. Shake well the bottle of Mazda Cooling Coil Coating and attach it to applicator. Then connect applicator to compressed shop air. 4. Insert applicator through the right side glove box guide into grille of recirculation door. Point nozzle tip downwards and towards the center (approximately 7 o'clock poistion). 5. Spray entire contents of bottle in short bursts, 3 seconds ON, 3 seconds OFF into rotating fan. A fine mist may exit from ducts. 6. When bottle is empty, stop engine and remove applicator. Let vehicle sit for 10 minutes. 7. Use Step 1 to dry and cure product. 8. While product is drying, re-install glove box. 9. Note application date in service record. 2001-2002 Millenia: 1. Dry evaporator using the following procedure: A. Start engine. B. Set HVAC controls as follows: RECIRCULATE FULL HEAT (display indicates 90 degrees F). FAN HIGH A/C OFF (blank) AIRFLOW (FACE) Note: There are three A/C positions on the LCD panel (A/C, AC econ, blank). Depress the A/C button until blank is selected. C. Open one window approximately 1/2 inch. D. Let engine run for 10 minutes. 2. Remove lower panel by pulling downward at both ends. 3. Remove 10 mm nut retaining cabin air filter bracket. 4. Remove bracket by sliding downward. 5. Remove cabin air filters by sliding downward. Discar filters if dirty. 6. Cover cabin air filter access hole with duct tape. 7. Pierce hole in center of duct tape with knife. 8. Shake well the bottle of Mazda Cooling Coil Coating and attach it to applicator. Then connect applicator to compressed shop air. 9. Insert applicator in pierced hole through duct tape. 10. Point nozzle tip in the direction of the driver's side. 11. Spray entire contents of bottle in short bursts, 3 seconds ON, 3 seconds OFF into rotating fan. A fine mist may exit from ducts. 12. When bottle is empty, stop engine and remove applicator. Let vehicle sit for 10 minutes. 13. Use Step 1 to dry and cure product. 14. Remove duct tap and install previously cleaned or new filters as needed. 15. Reinstall cabin air filter bracket. 16. Reinstall lower panel. 17. Note application date in service record. Link to comment Share on other sites More sharing options...
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